Grate



(No Model.)

0. J. BONNET.

I GRATE- v No. 564,864. Patented July 28, 1896;

Rs cu. woroumov WASHINGTON, u c

UNITED STATES PATENT OFFICE.

CHARLES J. BONNET, OF QUINCY, ILLINOIS.

G RATE.

SPECIFICATION forming part of Letters Patent No. 564,864, dated July 28, 1896.

Application filed May 3, 1895. Serial No. $28,069. (No model.)

To all whom it may concern:

Be it known that I, OHAELEs J. BONNET, of

Quincy, in the county of Adams and State of Illinois, have invented certain new and useful- Improvements in Grates; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in grates, the object being to provide means for maintaining a continuous downward draft to the fuel when the bottom grate is closed.

With this object in view my invention consists in certain novel features of construction and combinations of parts, as will be hereinafter more fully described, and pointed out in the claim.

In the accompanying drawings, Figure 1 is a vertical sectional view of my improvement in perspective. Fig. 2 is a sectional view of same. Fig. 3 is a detached view of one of the grate-sections. Fig. 4 is a detached view of one of the beveled rings 24, and Fig. 5 is a view in section of the inner cone.

A represents the base of a stove,and 2 is the grate, which latter is composed of an upper section 3 and a lower section 4. This latter section is provided with the usual number of grate-bars 5 and openings 6 and with a central opening 7. The body portion of said grate is provided with a series of upwardlyprojecting arms 9, having inclining shoulders 10 10, formed near their upper ends. This upper section 3 is also provided with a suitable number of grate-bars 1i and openings 15, which are adapted to register with the grate-bars and openings of section 4. The grate-bars of section 3 are also adapted to close the openings 6 of section 4.

A cross-bar 18 extends across the opening in the grate and is provided with a hole for the reception of bolt 19, by means of which the conical plates 20 are secured in position. These plates are of different diameters and are each provided with a central opening 21, said plates being so nested as to form a complete cone. Each plate is also provided with several lugs or feet 21, by means of which the plates are elevated one above the other so as to form air spaces or passages 22 between each pair of plates. The openings 21 form a continuous flue for the upward passage of air to the fuel. The air in its passage this opening is prevented. From the foregoing it will be seen that by the arrangement of the plate 20 the air during its upward passage will be deflected at different elevations through the several air-spaces 22 and from thence into the fire. The several plates 20, forming the cone above referred to, may, if desired, be cast in one piece.

Located directly above sections 3 and 4 and surrounding the cone formed of plates 20 is a series of beveled rings 24, which rest upon the inclining shoulders 10 10, an air-space thus being formed between each pair of rings. By arranging these rings as above described it will be seen that a downward draft to the fuel is at all times assured and that closing of the air-spaces between said rings is prevented. These rings, if desired, may be cast in one section and supported on the arms 9, as hereinbefore stated.

It is evident that changes in the construction and relative arrangement of the several parts might be made without avoiding my invention, and hence I would have it understood that I do not restrict myself to the particular construction and arrangement of parts shown and described; but,

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

As an article of manufacture, a grate comprising two slotted sections having open centers and pivoted together and a series of centrally-located plates arranged to form a flue through the center or interior of the fuel, and a series of outer rings between which air passes, said grate being so constructed and arranged that the passage of air through the bottom thereof may be shut off and caused to ascend into the fuel both on the interior and exterior surface thereof, substantially as set forth.

CHARLES J. BONNET.

Witnesses:

J. FRANK WILsoN, JAMES W. BONNET. 

